POGZ (pogo transposable element-derived protein with zinc finger domain; 1,410 aa, 155 kDa) plays a role in mitotic cell cycle progression and is involved in kinetochore assembly and mitotic sister chromatid cohesion. Probably through its association with CBX5 (HP1 alpha) it plays a role in mitotic chromosome segregation by regulating aurora kinase B/AURKB activation and AURKB and CBX5 dissociation from chromosome arms.